big great refactor

modules/nixos/system/nix/default.nix

@@ -0,0 +1,32 @@
+{ ... }:
+
+{
+  nix.settings = {
+    experimental-features = [
+      "nix-command"
+      "flakes"
+    ];
+
+    max-jobs = 1;
+    cores = 0;
+
+    substituters = [
+      "https://cache.nixos.org"
+      "https://nix-community.cachix.org"
+      "https://ezkea.cachix.org"
+      "https://noctalia.cachix.org"
+      "https://hyprland.cachix.org"
+      "https://cache.garnix.io"
+    ];
+    trusted-public-keys = [
+      "cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY="
+      "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
+      "ezkea.cachix.org-1:ioBmUbJTZIKsHmWWXPe1FSFbeVe+afhfgqgTSNd34eI="
+      "noctalia.cachix.org-1:pCOR47nnMEo5thcxNDtzWpOxNFQsBRglJzxWPp3dkU4="
+      "hyprland.cachix.org-1:a7pgxzMz7+chwVL3/pzj6jIBMioiJM7ypFP8PwtkuGc="
+      "cache.garnix.io:CTFPyKSLcx5RMJKfLo5EEPUObbA78b0YQ2DTCJXqr9g="
+    ];
+  };
+
+  programs.nix-ld.enable = true;
+}